Population genetic dynamics in the French Guiana region.
Three sets of genetic markers (blood group plus protein polymorphisms, mitochondrial DNA, and Y-chromosome) were compared in four French Guiana and one Brazilian Amerindian populations. Spearman's rank correlation coefficient between five gene diversity statistics and historical or present-day population sizes showed significant values, indicating loss of diversity due to population bottlenecks. The three sets of markers furnished distinct admixture estimates, and the blood group plus protein polymorphisms could have overestimated the European contribution to their gene pool. Correspondence analysis distinguished the coastal from the interior populations, possibly reflecting past migration events.
Mazières
Stéphane
S
Laboratoire d'Anthropobiologie, FRE 2960 CNRS, Faculté de Médecine, Toulouse, France. stephanemazieres@voila.fr
Sevin
André
A
Callegari-Jacques
Sidia M
SM
Crubézy
Eric
E
Larrouy
Georges
G
Dugoujon
Jean-Michel
JM
Salzano
Francisco M
FM
D000483:Alleles; D001789:Blood Group Antigens / Q000235:genetics; D041322:Chromosomes, Human, Y / Q000235:genetics; D004272:DNA, Mitochondrial / Q000235:genetics; D005260:Female; D005616:French Guiana; D005819:Genetic Markers / Q000235:genetics*; D005828:Genetics, Population; D006239:Haplotypes; D006801:Humans; D008297:Male; D011110:Polymorphism, Genetic; D011157:Population Dynamics; D012044:Regression Analysis; D018709:Statistics, Nonparametric
D001789:Blood Group Antigens; D004272:DNA, Mitochondrial; D005819:Genetic Markers